Window-screen.



I0 MODEL.

, INVENTOH M A TTOHNE Y UNITED STATES Patented May 26, 1903.

PATENT OFFICE.

HENRY LANGE, OF sr. LOUIS, MIssOURI."

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 729,498, dated May 26,1903.

' Application filed March 2, 1903. Serial No- 145,788. (No model.)

companying drawings, forming a part hereof. My invention has relation to improvements [Q in window-screens; andit consistsinthenovel constructionof screen more fully set forth in the Specification and pointed out in theclaim.

In the drawings,Figure I is a front elevation r of a window with the screen in position. Fig. 2 is a horizontal section on line 2 2 of Fig. 1. Fig. 3 is a similar view showing the screen in the position of being inserted. Fig. 4 is an enlarged front elevation of the locking-bolt. 2o 5 is an enlarged rear elevation of the top of the screen, showingthe upper hinge and the superposed strips by which a tight joint is eifected betweenthe screen and adjacent sash; and Fig. .6 is a top plan of Fig. 5. j z 5 The object of my invention is'to provide a screen which can be readily inserted into the window frame and subsequently removed therefrom without in any wise disturbing the fixtures by which it is retained in position while doingservice.

In detail the device may be described as follows:

Referring to the drawings, F represents a window-frame of usual construction, and S the sash thereof. Secured along the inside of the frame on each side thereof are-strips 1 1, which, together with the sash-frame, form guideways or grooves 2 for the reception of the opposite vertical sides of the screen-frame. The latter is composed of two hinged sections 3 3, which are folded at an angle while the screen is being inserted into position Fig. 3, and when the sides of the screen are opposite the grooves 2 the sections 3 3 are unfolded 45. to occupy the same plane, when they will fit snugly within the frame F. To insure a tight joint between the screen and the sash S, the upper member of the screen-frame is provided with strips 4 4 on each side of the hinge line, the adjacent ends of said strips being scar-fed or spliced so as to form a lap-joint, both the ends of the overlapping portions and the base of the scarf being cut at an incline (see inclined edges 5 5, Fig. 6) to the length of the strips to'allow forthe free oscillation of the sections 3 3 about the hinges 6. (See dotted positionFig. 6.)

v The upper member of the screen is provided with a sliding bolt 7, securedto one section of the scieemframe, the end of the bolt being received by a loop or staple 8, carried by the adjacent section, so as to lock the sections while in their unfolded position. The lower member of one of the screen-sections is provided witlra knob or button 9, by which the screen may be moved up or down should it be desirable to raise the screen and subsequently lower it for any, purpose.

It is apparent from the foregoing that a screen constructed as above is readily applied to any-window-frame, and when occasion for its removal arises the strips 1 1 neednot be disturbed, but may remain permanently'in position. Ido not, of course, wish to be limited to the precise details here shown; as they may be ..departed from without, in any wise affecting the nature or spirit of my' invention. It is further apparent that I may vary the number of hinged sections composing the screen. Of course the wire-netting readily bends with the partial folding of the frame, so that a single sheet of netting can be used with the two sections of the screen-frame.

Having described my invention, what I claim is A window-screen comprising two hinged sec tions, a sliding bolt carried by one section adj acent-to the hinge-line, a staple or loop carried by the opposite section for the reception of the bolt, strips disposed along one of the terminal members of the screen-frame having scarfed overlapping ends, the said overlapping portions and the bases of the scarfs being cut at an incline to the-length of the strips, substantially as set forth.

Intestimony whereof I aflix my signature in presence of two witnesses.

HENRY LANGE.

Witnesses:

EMIL STAREK, MARY D. WHITCOMB. 

